Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Mayra Kitzury Perez Martinez , APRN, CNP

Nurse Practitioner β€’ Mchenry, IL

Active NPI 1205609351 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

4309 W Medical Center Dr Ste A200
Mchenry, IL 600508437

Call 8157598070 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

4309 W Medical Center Dr Ste A200

Mchenry, IL 600508437

Telephone 8157598070
Fax 8157594931
Organization at the Same NPPES Address or Phone
Centegra Health System Facility NPI 1497136071

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Northwestern Medical Faculty Foundation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2022

30-day fills

148 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$375 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $1,015.81 across 7 records.

By nature of payment

  • Food and Beverage: $770.44 across 6 records.
  • Travel and Lodging: $245.37 across 1 record.

Reporting-company totals (3 largest of 4)

  • Boston Scientific Corporation: $760.48 across 3 records.
  • Medtronic, Inc.: $181.80 across 2 records.
  • Edwards Lifesciences Corporation: $55.70 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

4 years (graduated 2022)

CMS Doctors and Clinicians data list 2022 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2023

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Mayra Perez Martinez has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Mayra Perez Martinez as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Mchenry and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

Fewer Part D prescriptions than 70% of clinicians listed under Nurse Practitioner in Mchenry, IL (2024, 29 clinicians with data). Median for this group: 351. Middle half: 134 to 595.

Fewer Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: 259. Middle half: 80 to 930.

Part D drug cost

A lower Part D drug cost than 85% of clinicians listed under Nurse Practitioner in Mchenry, IL (2024, 29 clinicians with data). Median for this group: $19,234. Middle half: $2,398 to $152,013.

A lower Part D drug cost than 85% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: $10,867. Middle half: $976 to $113,945.

42 active clinicians are listed under Nurse Practitioner with a practice address in Mchenry, IL (4,894 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Mchenry

28.6% of these 42 clinicians have the CMS telehealth indicator.

85.7% of these 42 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2025

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $1,015.81.

Manufacturer Payment Nature Product Type Amount ($)
Boston Scientific Corporation
Food and Beverage
In-kind items and services
WATCHMAN FLX General $310.90
Boston Scientific Corporation
Travel and Lodging
In-kind items and services
WATCHMAN FLX General $245.37
Boston Scientific Corporation
Food and Beverage
In-kind items and services
WATCHMAN FLX General $204.21
Medtronic, Inc.
Food and Beverage
In-kind items and services
LINQ II General $100.28
Medtronic, Inc.
Food and Beverage
In-kind items and services
MICRA General $81.52
Edwards Lifesciences Corporation
Food and Beverage
In-kind items and services
β€” General $55.70
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
Food and Beverage
Cash or cash equivalent
LifeVest General $17.83

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D Β· Data Year 2024
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Metoprolol Tartrate Metoprolol Tartrate 38 1,320 $74.09 24
Atorvastatin Calcium Atorvastatin Calcium 30 900 $78.23 17
Furosemide Furosemide 24 184 $23.26 24
Potassium Chloride Potassium Chloride 24 184 $46.36 24
Amiodarone Hcl Amiodarone Hcl 13 348 $146.61 13
Tramadol Hcl Tramadol Hcl 12 36 $6.26 12

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-04-24
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES IL 209028365

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Nurse Practitioner - Acute Care

NUCC Taxonomy Code: 363LA2100X

License # reported to NPPES IL 209.028365
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20240118001406

Enrollment State Jurisdiction

IL

PECOS Control ID

8820440522

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Northwestern Medical Faculty Foundation

10400 Haligus Rd, Huntley, IL 601429553

Northwestern Medical Faculty Foundation

10370 Haligus Rd, Huntley, IL 601429582

Northwestern Medical Faculty Foundation

4309 W Medical Ctr Dr, Mchenry, IL 600508411

Phone: 8157598070

Northwestern Medical Faculty Foundation

4309 W Medical Ctr Dr, Mchenry, IL 600508437

Phone: 8157598070

Northwestern Medical Faculty Foundation

675 N St Clair, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

4201 W Medical Ctr Dr, Mchenry, IL 600508409

Phone: 8157594800

Northwestern Medical Faculty Foundation

675 N Saint Clair St, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

515 Valley View Dr, Moline, IL 612656175

Phone: 3126950870

Northwestern Medical Faculty Foundation

4201 W Medical Ctr Dr, Mchenry, IL 600508409

Phone: 8157594323

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

26 listed
Dr. Mubashir Ahmed , MD

Internal Medicine - Cardiovascular Disease

NPI 1366466377

Doctor of Medicine (M.D.)

Dr. Sahil Attawala , MD

Internal Medicine - Clinical Cardiac Electrophysiology

NPI 1982832192

Doctor of Medicine (M.D.)

Carrissa Butts , APRN, CNP

Nurse Practitioner

NPI 1972048528

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Justin Duffy , PA-C

Physician Assistant

NPI 1174918809

Physician Assistant (Certified)

Judi Forner

Clinical Nurse Specialist - Adult Health

NPI 1194123679
Jana Goodall , APRN, CNP

Nurse Practitioner

NPI 1255733010

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

10 Historical Events
πŸ“
Updated Practice Location April 24, 2024

Registered at 4309 W MEDICAL CENTER DR STE A200, MCHENRY, IL 600508437 (Tel: 8157598070)

πŸ“
Updated Business Mailing Address April 24, 2024

Registered at 4309 W MEDICAL CENTER DR STE A200, MCHENRY, IL 600508437 (Tel: 8157598070)

πŸ‘€
Provider Name / Credentials Updated April 24, 2024

Recorded as MAYRA PEREZ MARTINEZ, APRN, CNP

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 24, 2024

Nurse Practitioner (license number reported to NPPES: IL 209028365)

βœ…
NPI Profile Active October 31, 2023

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) October 31, 2023

Registered at 4201 W MEDICAL CENTER DR, MCHENRY, IL 600508409 (Tel: 1815344500)

πŸ“
Business Mailing Address (Initial Record) October 31, 2023

Registered at 880 S LIBERTY ST, ELGIN, IL 601208338 (Tel: 2247356876)

πŸ‘€
Provider Name / Credentials (Initial Record) October 31, 2023

Recorded as MAYRA PEREZ MARTINEZ, APRN

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) October 31, 2023

Nurse Practitioner (license number reported to NPPES: IL 209.028365)

🟒
Initial NPI Registration & Enumeration October 31, 2023

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1205609351
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 31, 2023
Last Update: April 24, 2024
Sole Proprietor: Yes

Other Nurse Practitioners in Mchenry

All Nurse Practitioners in Mchenry

Mailing Address

4309 W Medical Center Dr Ste A200

Mchenry, IL 600508437

Phone: 8157598070

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.